olsen



2 Shets-Sheet 1.

(No Model.)

L. A. OLSEN.

FEED WATER HEATER.

No. 332,824. Patented-Deo.'22, 1885.

2 Sheets Sheet 2..

(No ModeL) L. A. OLSEN. FEED WATER HEATER.

Patented DeoQZZ, 1885.

I II 111 N. PETERS, Fhnlvl lhographer. Waahingiun, D. C;

UNITED STATES PATENT OFFICE.

LABS. A. OLSEN, OF SAN FRANCISCO, CALIFORNIA.

FEED-WATER H EATER.

SPECIFICATION forming part of Letters Patent No. 332,824, dated December 22, 1885.

Application filed October 1, 1885.

.To all whom it may concern:

for heating and purifying feed-water to boilers; and my invention consists of a boiler-iron box at the rear of the boiler, a second box or casing upon the first box and containing return-flues communicating with the pipe from the pump, said box or casing receiving the exhaust-steam, a globe connected with one end of the first box and with a pipe from the dues of the second box, a globe connected with the other end of the first box and with the pipe to the boiler, a cup or disk in the first globe to receive the feed-water, and a valved outletpipe from said cup, a check-valve in the second globe, a perforated casing around said valve, and a screen-cylinder around the casing, a discharge-pipe from the globe, and other details of construction, all of which I shall hereinafter fully describe.

The object of my invention is to provide a simple and effective device which is adapted not only to heat thefeed-water, but at the same time to purify it, and which can be easily cleansed.

Referring to the accompanying drawings, Figure l is an end elevation of my device.

. Fig. 2 is a longitudinal vertical section.

A is a portion of a boiler, of which a are the tubes, and a the rear tube-sheet. Instead of the rear plate of the boiler, I have the boiler-iron box B, resting on the brick-work, and adaptv -ed to be heated directly by the flames as they return through the tubes. I In the rear of the boiler-iron box are man-holes b. On top of the box B is a second box or casing, X,' containing return-pipes ac, communicating with a 5 is a globe, C, in the top of which is let the pipe 0 from the pipes 4v. Within the globe is Serial No. 178,765. (No model.)

a cup or dish, D, from the bottom of which a pipe, (1, extends and passes out through the globe to the ash-pan, a valve, d, being let into said pipe. The pipe 0 projects downwardly into the globe, and has screwed upon its end, just above the cup or dish D, a conical sleeve or thimble, W. The lower end of the pipe 0 is closed,but perforations c are madein its sides, through which the water escapes. A conical screen or sieve, V, is slipped over the rim of the cup D,and embraces with its top the pipe 0. On the other end of box X is a globe, E, within which is a perforated casing, F, the stem f of which communicates with the box B. In this casing is seated an upwardly-moving check-valve, G. Supported on small lugs 0 within the globe E is a cylindrical screen or sieve, R, which may be made of wire-cloth or perforated metal, such as zinc. In the top of the wire-cloth cylinder is an upwardlyopening check or safety valve, 9', held to its seat by a spring, r.

H is a pipe which leads from the top of the globe to the boiler.

I is a pipe leading out of the globe near its base, and provided with avalve or cook, z.

The operation of my device is as follows: The feed-water is forced by the pump through pipe 00 and through the flues a: of box X, in which its temperature is raised by the ex haust-steam. Thence it passes through the pipe 0, escaping through the perforations at its lower end, and striking against the conical thimble or sleeve W, from which it drops down into the cup or dish D. The valve 01 of the outlet-pipe d of said cup or dish being closed, the water overflows through the screen V. A great portion of the impurities are left in the sides of the cup and in its outlet-pipe. The presence of the sleeve or thimble IV, which receives the first impact of the water, prevents undue agitation of the water in the cup, and thus induces the water to part with its impurities, a result which is further assisted by the screen V. The water thus purified passes down through the globe into the boileriron box B, in which it is fully heated. It is thence forced up through the stem f, past the valve G, into the casing F, through the perforations of which it passes outwardly through the screen B into the globe E. In thus passing through the parts described whatever impurities may be still in the water are separated and deposited as sediment in the base of the globe. The pure water passes through pipe H to the boiler. The object of the valve r in the top of the screen Bis to relieve said screen if it should become clogged. \Vhen a sufiicient quantity of sediment has collected in the cup D of the globe O, the cock d of its discharge-pipe d is opened, and the impurities are blown out into the ash-pan by the incoming water; and when the impurities have accumulated in the globcEthe pump is stopped, the cock 1' of the discharge-pipe I is opened, and the whole pressure of the water in the boiler is thrown back into the globe, whereby its impurities are washed out. The box B is cleansed through the man-holes 1).

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

' 1. In a feed-water heater and purifier, the box B at the back of the boiler, in combination with the globe O, communicating with the pump and with the box at one end, and

the globe F, communicating with the boiler and with the box B at the other end, substan tially as herein described.

2. In a feedwater heater and purifier, the box B at the back of the boiler, having a communication at one end with the boiler, in com bination with the box X, having inlet and exhaust ports for the exhaust-steam, and the flues or pipes 00 within the box X, communicating with the pump and with the box B, substantially as herein described.

3. In a feed-water heater and purifier, the boxB at the back of the boiler, having a communication at one end with the boiler, in combination with the globe G, communicating with the other end of the box and with the pump, and the cup or dish D in the globe, adapted to receive the water, having an exit-pipe with a valve, substantially as herein described.

4:. In a feed-water heater and purifier, the box B at the back of the boiler, communicating at one end with the boiler, in combination with the globe O, the inlet water-pipe 0, having perforations in its lower end, the conical sleeve or thimble W on the end of pipe 0, and the cup or dish D, having pipe at and valve d, substantially as herein described.

5. In a feed-water heater and purifier, the globe O, communicating with the feed-waterheating chamber, and having a cup or dish, D, within it provided with a valved outlet, in combination with the feedpipec, projecting into the globe above the cup or dish and having a perforated lower end, and the conical sleeve or thimble WV on the pipe a, substantially as herein described.

6. In a feed-water heater and purifier, the globe O, communicating with the feed-waterheating chamber, the cup or dish D within the globe and provided with a valved outlet, and the screen or sieve V over the top of the cup, in combination with the feed-pipe 0, projecting into the globe and through the top of the screen and having a perforated lower end, and the conical sleeve or thimble W on the pipe 0, substantially as herein described.

7. In a feedwater heater and purifier, the globe E, communicating with the boiler, in combination with the perforated valved casing F within the globe and communicating with the feed-water-heating chamber, substantially as described.

8. In a feed-water heater and purifier, the globe E, communicating with the boiler, and having a valved outlet-pipe at or near its base, in combination with the perforated valved casing F within the globe and communicating with the feed-water-heating chamber, substantially as described.

9. In a feed-water heater and purifier, the globe E, communicating with the boiler and having a valved outlet-pipe at or near its base, in combination with the perforated valved casing F within the globe and communicating with the feed-water-heating chamber, and the cylindrical screen R around said casing, substantially as herein described,

10. In a feed-water heater and purifier, the box B at the back of the boiler, in combination with the globe G, communicating with one end of the box and with the pump, the cup or dish D within said globe adapted to receive the feed-water and having a valved outlet, the globe E at the other end of the box, communicating with the boiler and having a valved outlet, and the perforated valved casing F within globe E and communicating with the box, substantially as herein described.

11. In a feed-water heater and purifier, the box B at the back of the boiler and communicating at one end with said boiler, the box X on top of said box heated by exhauststeam, and the flues or pipes 00 in said box X, communicating with the pump, in combination with the globe O on the box X and communicating with the box B, the pipe 0, connecting the flues or pipes 00 with said globe, said pipe having a perforated end within the globe, the thimble or sleeve W on the pipe, the cup or dish D, having a valved outlet, and the top screen, V, for said cup or dish, substantially as herein described.

12. In a feed-water heater and purifier, the box B at the back of the boiler, and the box X, heated by exhaust-steam and having flues or pipes 00, connected with the pump and com-' municating with the boxBat one end, in combination with the globe E, having a valved outlet and communicating with the boiler, and the perforated valved casing F within the globe and communicating with the box B, substantially as described.

13. A feed-water heater and purifier comprising the box' B at the back of the boiler, the box X on top of box B, and having ports adapting it to be heated by exhaust-steam, the flues or pipes 00 in box X, the pipe as, connecting said flues with the pump, the globe O, communicating with the box B, the pipe 0, connecting the flues or pipes 00 with said I and adapted to operate substantially as herein 1o globe, said pipe projecting into the globe described. and having a perforated end, the thimble or In witness whereof I have hereunto set my sleeve on the end of pipe 0, the cup or dish D, hand.

5 having a valved outlet and a screened top, the LABS. A. OLSEN.

globe E, connected with the boiler and having Witnesses: a valved outlet, the perforated valved casing F O. D. OoLE, in said globe communicating with box B, and J. H. BLOOD.

the screen R around said casing, all arranged 

